the terror threat at the winter olympic games and the desperate dragnet to find a suspect so-called black widow on a deadly mission getting ready to launch an attack at the games and Brian Ross has the latest on this all-out hunt for her and others. Good morning, robin. It's a race against time in sochi. New reports this morning that authorities are looking for three alleged female suicide bombers including most troubling one who's believed to have already been in the olympic city for at least a week. Across the Russian city police are asking in help for finding the woman who somehow made it through the ring of security surrounding sochi. In wanted posters at the airport and sent to hotels security services identified her as 22-year-old ruzanna ibragimova from the militant stronghold of dagestan whose husband was killed in a shootout with police last year. She is described as having a four-inch facial scar, pronounced limp and left arm that will not bend at the elbow. The fact she's there can a major concern because it shows a small group of determined individuals can infiltrate the Russian security apparatus and get into the heart of sochi just a few weeks ahead of the olympics. Reporter: And given the role of young widows in past deadly terror attacks in Russia security experts say the woman believed to be in sochi is likely to be part of a larger team of suicide bombers. Whitney women they tend to operate in teams of two and it's very unlikely that they would just send one of these teams into sochi. &#9834; Reporter: As U.S. Olympic athletes enter the final stages of competition and preparation for sochi, officials say they are working closely with the state department and law enforcement agencies to make sure everyone is safe. There appears to be no talk of pulling out because of the security concern. And the black widow attacks have been especially deadly in Russia. More than 200 people killed in suicide attacks in the last dozen years or so, robin, inside Russia. Thanks, Brian. The U.S. Military taking no

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Purported suicide bombers issue threats against Olympics in new video.

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